linux-kernel - [PATCH v4 1/1] dt-bindings: watchdog: starfive,jh7100-wdt: Add compatible for JH8100

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Message-ID: <20231216014850.1011344-2-jisheng.teoh@starfivetech.com>
Date: Sat, 16 Dec 2023 09:48:50 +0800
From: Ji Sheng Teoh <jisheng.teoh@...rfivetech.com>
To: Xingyu Wu <xingyu.wu@...rfivetech.com>, Samin Guo
	<samin.guo@...rfivetech.com>, Wim Van Sebroeck <wim@...ux-watchdog.org>,
	Guenter Roeck <linux@...ck-us.net>, Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley
	<conor+dt@...nel.org>
CC: Ji Sheng Teoh <jisheng.teoh@...rfivetech.com>, Ley Foon Tan
	<leyfoon.tan@...rfivetech.com>, <linux-watchdog@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v4 1/1] dt-bindings: watchdog: starfive,jh7100-wdt: Add compatible for JH8100

Add "starfive,jh8100-wdt" compatible string for StarFive's JH8100
watchdog.
Since JH8100 watchdog only has 1 reset signal, update binding
document to support one reset for "starfive,jh8100-wdt" compatible.

Signed-off-by: Ley Foon Tan <leyfoon.tan@...rfivetech.com>
Signed-off-by: Ji Sheng Teoh <jisheng.teoh@...rfivetech.com>
---
 .../watchdog/starfive,jh7100-wdt.yaml         | 29 +++++++++++++++----
 1 file changed, 23 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/watchdog/starfive,jh7100-wdt.yaml b/Documentation/devicetree/bindings/watchdog/starfive,jh7100-wdt.yaml
index 68f3f6fd08a6..ab077f64a83e 100644
--- a/Documentation/devicetree/bindings/watchdog/starfive,jh7100-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/starfive,jh7100-wdt.yaml
@@ -19,14 +19,12 @@ description:
   isn't cleared, the watchdog will reset the system unless the watchdog
   reset is disabled.
 
-allOf:
-  - $ref: watchdog.yaml#
-
 properties:
   compatible:
     enum:
       - starfive,jh7100-wdt
       - starfive,jh7110-wdt
+      - starfive,jh8100-wdt
 
   reg:
     maxItems: 1
@@ -45,9 +43,7 @@ properties:
       - const: core
 
   resets:
-    items:
-      - description: APB reset
-      - description: Core reset
+    maxItems: 2
 
 required:
   - compatible
@@ -56,6 +52,27 @@ required:
   - clock-names
   - resets
 
+allOf:
+  - $ref: watchdog.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - starfive,jh8100-wdt
+    then:
+      properties:
+        resets:
+          items:
+            - description: Core reset
+    else:
+      properties:
+        resets:
+          items:
+            - description: APB reset
+            - description: Core reset
+
 unevaluatedProperties: false
 
 examples:
-- 
2.25.1